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Cheap flights from Phoenix Sky Harbor Intl Airport to Denver from £50

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/1. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — DEN
18 Oct — 25 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Phoenix Sky Harbor Intl to Denver Intl are usually found in February or January, booked 62 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap flight deals from Sky Harbor Intl to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Sky Harbor Intl (PHX) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 18 September 2025.

Round-trip from

£66

One-way from

£50

Popular in

June

Cheapest in

February

Average price

£111

Good round-trip deal

£118 or less
Frontier
  • Frontier
  • 31/10-7/11
  • Nonstop
  • 3h 58m total
  • Phoenix to Denver
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Frontier
  • Frontier
  • 29/1
  • Nonstop
  • 1h 55m total
  • Phoenix to Denver
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Highest demand for flights based on searches. 14% potential increase in price (£15 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£2 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Phoenix Sky Harbor Intl to Denver Intl.
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Find flight deals from Sky Harbor Intl to Denver

Cheapest flights from Sky Harbor Intl to Denver
Explore the most affordable flight options available from Sky Harbor Intl to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Fri 31/1011:55PHX - DEN
Nonstop1h 58mFrontier
Fri 7/1122:29DEN - PHX
Nonstop2h 00mFrontier
Deal found 16/9£66
Sun 2/1107:30PHX - DEN
Nonstop1h 57mFrontier
Sun 9/1122:29DEN - PHX
Nonstop2h 00mFrontier
Deal found 18/9£75
Tue 30/908:00PHX - DEN
Nonstop2h 00mFrontier
Tue 30/922:29DEN - PHX
1 stop24h 52mFrontier
Deal found 17/9£85
Sat 25/1019:40PHX - DEN
Nonstop1h 45mSouthwest
Mon 27/1021:25DEN - PHX
Nonstop1h 55mSouthwest
Deal found 17/9£108
Tue 2/1217:05PHX - DEN
Nonstop1h 45mSouthwest
Thu 4/1208:00DEN - PHX
1 stop3h 25mSouthwest
Deal found 15/9£113
Tue 2/1216:05PHX - DEN
1 stop3h 45mSouthwest
Sat 6/1218:50DEN - PHX
Nonstop1h 55mSouthwest
Deal found 16/9£115
Thu 20/1113:30PHX - DEN
1 stop4h 15mSouthwest
Tue 2/1205:30DEN - PHX
Nonstop2h 05mSouthwest
Deal found 15/9£116
Fri 31/1007:01PHX - DEN
1 stop15h 50mAlaska Airlines
Sat 1/1112:49DEN - PHX
1 stop5h 13mAlaska Airlines
Deal found 16/9£122

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sky Harbor Intl to Denver that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 18 September 2025.
Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport to Denver that are best for you.

Fly from

Sky Harbor Intl

Fly to

Denver

Route

Depart

Return

Price

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Tue 2/12

16:05-19:50

1 stop3h 45m

Denver Intl

Sat 6/12

18:50-20:45

Nonstop1h 55m

£115

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Tue 30/12

17:40-19:36

Nonstop1h 56m

Denver Intl

Thu 1/1

09:41-11:47

Nonstop2h 06m

£115

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Thu 20/11

13:30-17:45

1 stop4h 15m

Denver Intl

Tue 2/12

05:30-07:35

Nonstop2h 05m

£116

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Tue 2/12

16:55-21:35

1 stop4h 40m

Denver Intl

Thu 4/12

08:00-11:25

1 stop3h 25m

£126

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Sat 13/12

14:55-19:35

1 stop4h 40m

Denver Intl

Wed 17/12

14:45-18:40

1 stop3h 55m

£126

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Mon 24/11

13:55-15:40

Nonstop1h 45m

Denver Intl

Fri 28/11

14:20-16:15

Nonstop1h 55m

£130

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Sat 22/11

15:48-23:59

1 stop8h 11m

Denver Intl

Mon 24/11

19:20-09:40

1 stop14h 20m

£138

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Sat 4/10

16:05-18:50

Nonstop1h 45m

Denver Intl

Tue 7/10

06:40-10:05

1 stop4h 25m

£141

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Sun 7/12

07:00-11:10

1 stop4h 10m

Denver Intl

Sat 13/12

12:38-20:14

1 stop7h 36m

£144

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Fri 5/12

17:30-23:58

1 stop6h 28m

Denver Intl

Sun 7/12

19:28-00:31

1 stop5h 03m

£144

Flights are sorted by cheapest return flights first.

Deals found on 17/9

Showing 1-10 of 22 results
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Best time to book a flight from Sky Harbor Intl to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Sky Harbor Intl with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Phoenix Sky Harbor Intl Airport to Denver

How far ahead should I book a flight from Phoenix Sky Harbor Intl Airport to Denver?

Use this chart to determine the optimal time to book a return flight from Sky Harbor Intl to Denver. Price data was last updated on 12 September 2025.

To ensure you get the cheapest price possible for a flight from Phoenix Sky Harbor Intl Airport to Denver, you should look to book at least 62 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Phoenix Sky Harbor Intl Airport to Denver?

Currently, January is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Denver (average of £667). Flying from Phoenix Sky Harbor Intl Airport to Denver in July is currently the most expensive (average of £983). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PHX to DEN?

Find hourly flight availability from Sky Harbor Intl to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 September 2025.

Unlike at midday, when flights are generally more expensive, you can save up to 92% on flights from Phoenix Sky Harbor Intl Airport to Denver by exploring options for tickets in the morning.

How much does it cost for a return flight from Phoenix Sky Harbor Intl Airport to Denver?

Related info for your journey

Find useful and relevant information for your journey from Sky Harbor Intl to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Denver from Phoenix Sky Harbor Intl?

    For a flight from Phoenix Sky Harbor Intl to Denver, you will be flying into Denver Intl. Denver Intl (DEN) is just 18.5 mi from the center of the city. Denver Intl is the only Denver airport and it handles 26 inbound flights from Phoenix Sky Harbor Intl per day. 0 airlines have flights to Denver Intl from Phoenix Sky Harbor Intl on a regular basis.

  • How long is the flight from Phoenix Sky Harbor Intl Airport to Denver?

    There are many flights that can get you from Phoenix Sky Harbor Intl Airport to Denver in 1h 56m. Fly via United Airlines or Southwest to get the fastest option. The distance between Phoenix Sky Harbor Intl Airport and Denver is about 601 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Phoenix Sky Harbor Intl Airport to Denver one-way?

    The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as £51. However, be on the lookout for offers from Alaska Airlines and Southwest, as they are both options that can get you from Phoenix Sky Harbor Intl Airport to Denver for a low price.

  • What are the most reliable airlines from Phoenix Sky Harbor Intl Airport to Denver?

    Consider Envoy Air (88%), Air Canada (81%) or Lufthansa (79%) when booking your flight. These represent the most reliable airlines when flying from Phoenix Sky Harbor Intl Airport to Denver.

  • What are the cheapest flights from Phoenix Sky Harbor Intl Airport to Denver?

    While on average a flight from Phoenix Sky Harbor Intl Airport to Denver is generally £297, our data shows the cheapest flight currently is £118. When looking at the most popular route, (Phoenix Sky Harbor Intl - Denver Intl), you can expect to pay £110 for that flight.

  • Can I find deals for flights from Sky Harbor Intl to Denver that include hotel bookings?

    Yes. In addition to deals on Sky Harbor Intl to Denver flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Sky Harbor Intl to Denver?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sky Harbor Intl to Denver.

  • Can I find deals for business class flights from Sky Harbor Intl to Denver?

    Yes. Cheapflights offers flight deals from Sky Harbor Intl to Denver by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Phoenix Sky Harbor Intl Airport to Denver?

    Currently, January is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Denver (average of £667). Flying from Phoenix Sky Harbor Intl Airport to Denver in July is currently the most expensive (average of £983). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Can Cheapflights find flights from Sky Harbor Intl to Denver with no change fees?

Yes, we can. To see specific flights from Sky Harbor Intl to Denver with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Sky Harbor Intl to Denver become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Denver from Sky Harbor Intl today and book when prices fit your budget.

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